Home / 145,545.65-200,852.96-81,013.49

Finding the Fourth Proportional to 145,545.65, 200,852.96 and 81,013.49

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Solution

The fourth proportional to 145,545.65, 200,852.96 and 81,013.49 is: 111,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,545.65 : 200,852.96 = 81,013.49 : x
  2. Step 2: Convert to fraction form
    145,545.65/200,852.96 = 81,013.49/x
  3. Step 3: Cross multiply
    145,545.65x = 200,852.96 × 81,013.49
  4. Step 4: Simplify right side
    145,545.65x = 16,271,799,266.43
  5. Step 5: Solve for x
    x = 16,271,799,266.43/145,545.65
  6. Step 6: Final answer
    x = 111,798.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.